/*
 * Copyright 2005 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package core.api.a4;

import core.api.a2.Tuple;
import core.api.a2.WorkingMemory;
import core.impl.p1.Declaration;


public interface EvalExpression
    extends
    Invoker,
    Cloneable {
    
    Object createContext();
    
    boolean evaluate(Tuple tuple,
                     Declaration[] requiredDeclarations,
                     WorkingMemory workingMemory,
                     Object context) throws Exception;

    void replaceDeclaration(Declaration declaration,
                            Declaration resolved);

    EvalExpression clone();
}
